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Revealing the shear band cracking mechanism in metallic glass by X-ray tomography
Qu, R. T.; Wang, S. G.; Wang, X. D.; Liu, Z. Q.; Zhang, Z. F.; Qu, RT; Zhang, ZF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
2017-05-01
Source PublicationSCRIPTA MATERIALIA
ISSN1359-6462
Volume133Pages:24-28
AbstractThe mechanism of shear band (SB) cracking or cavitating under the stress state free from negative pressure is one of long-standing unsolved issues in metallic glass (MG). Here we show key findings including the 3D imaging on the evolution of SB cracking during compressing a ductile MG. Discontinuous and non-coplanar cracks with long narrow-thin morphology were observed in a shear-banding affected zone that is much thicker than the SB core. The results demonstrated that the SB cracking originates possibly from (1) the creation and coalescence of excess free volume, (2) the shearing of non-planar SB, and/or (3) the SB interaction. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.; The mechanism of shear band (SB) cracking or cavitating under the stress state free from negative pressure is one of long-standing unsolved issues in metallic glass (MG). Here we show key findings including the 3D imaging on the evolution of SB cracking during compressing a ductile MG. Discontinuous and non-coplanar cracks with long narrow-thin morphology were observed in a shear-banding affected zone that is much thicker than the SB core. The results demonstrated that the SB cracking originates possibly from (1) the creation and coalescence of excess free volume, (2) the shearing of non-planar SB, and/or (3) the SB interaction. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
description.department[qu, r. t. ; wang, s. g. ; wang, x. d. ; liu, z. q. ; zhang, z. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china
KeywordMetallic Glass Shear Band Cracking X-ray Tomography Compression
Subject AreaNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China (NSFC) [51331007, 51301174, 51501190]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78173
Collection中国科学院金属研究所
Corresponding AuthorQu, RT; Zhang, ZF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
Recommended Citation
GB/T 7714
Qu, R. T.,Wang, S. G.,Wang, X. D.,et al. Revealing the shear band cracking mechanism in metallic glass by X-ray tomography[J]. SCRIPTA MATERIALIA,2017,133:24-28.
APA Qu, R. T..,Wang, S. G..,Wang, X. D..,Liu, Z. Q..,Zhang, Z. F..,...&Zhang, ZF .(2017).Revealing the shear band cracking mechanism in metallic glass by X-ray tomography.SCRIPTA MATERIALIA,133,24-28.
MLA Qu, R. T.,et al."Revealing the shear band cracking mechanism in metallic glass by X-ray tomography".SCRIPTA MATERIALIA 133(2017):24-28.
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